Alarm



(No Model.)

H. WARLIGH.v

ALARM No. 894,895. Patented Deo. 18, 1888.

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NiTno STATES PATENT trice.

ALARM.

SPECIFICATION forming* part 0f Letters Patent NO. 394,895, dated DeCembel 18, 1888.

Application filed October 8, 1888. Serial No. 287,512. (No model.)

To aZZ whom it may concern.-

Be it known that I, HERMAN VARLICH, of Racine, in the county ot' Racine, and in the State ot' llvisconsin, have invented certain new and useful Improvements in Alarms; and I do hereby declare that the following is a tull, clear, and exact description thereof.

My invention relates more particularly to burglar-alarms;l and it consists in certain peculiarities ot' construction and combination of parts to bc hereinafter described with reference to the accompanying drawings, and subsequently claimed.

In the drawings, Figure l represents an elevation ot my device in operative position with relation to a window; Fig. 2, a horizontal seotion taken on line 2 2, Fig. l; and Fig. 3 a vertical transverse section taken on line 3 3, Fig. l.

Referring by letter to the drawings, A represents the upper and B the lower sash of a window. Secured to the top rail of the lower sash, B, by screws b, or other suitable means, is the base-plate C ot' my device, and pivotally connected to this base is a standard, D, that has a weighted upper end, d, and is provided at its lower end with a projection, e, that earries a lug,f, the latter being acted on by a spring, E, held upon the pivot-bolt g that unites said base-plate and standard.

At about the center of the weighted and pivoted standard D is a stud, F, having a reduced portion, h, that is preferably screwthreaded in said standard, as best illustrated in Fig. 3. The reduced portion 71A of the stud F serves as a bearing for a friction-wheel, G, that is preferably provided with a tire of rub` ber or other elasticv material, and arranged upon the outer side of this wheel is a series of radial lugs, having beveled faces.

Rigidly connected to the weighted upper end ot the standard D is a spring-wire, H, having a bend,j, that comes in the path of the lugs "i on the friction-wheel G, and another bend, It, that passes around and under the stud F. Secured to the bend It' of the spring'- wire H is a hammer, I, that is designed to strike a gong, J, secured to the stud F by means ot' a set-screw, on., or other suitable means.

The eXtreme lower end of the standard D is rounded or beveled off, as shown at n, and when said standard is swung outward on its pivot g this rounded orbeveled portion comes against a stop formed by a flange, o, on the base-plate C.

In the operation of my invention the standard D is swung on its pivot g, so as to bring the rim of the friction-wheel G against the side rail of the upper sash, A, and the spring E is placed under the lug f on said standard, so as to hold the latter in the position to which it has been adj usted, the weighted end of said standard aiding the spring in the accomplishm ent of this result. Now if the lower sash, B, be raised the frictional contact of the wheel G with the opposing' side rail of the upper sash, A, will cause said wheel to rotate in the direction of the arrow, Fig. l, and thus the lugs t' on the wheel will operate upon the bend j in the spring-wire H and cause the hammer I thereon to strike a successive number of blows upon the gong J. If the upper sash be lowered, the same operation will take place; but when the lower sash is being drawn down or said upper sash raised the wheel G will rotate in a direction opposite to that already described and the beveled faces of the lugs /L' on said wheel will slip past the bend j in the spring-wire H, and thus the latter will not be actuated. To throw the wheel G out of contact with the side rail of the upper sash, A, the spring E is withdrawn from under the lug f, and the standard D is swung back on its pivot g, said standard being held in the latter position by its weighted upper end.

Although I have more particularly described my invention in connection with a window, it is obvious that the device may be otherwise employed, it being ob vious that said ldevice may be arranged to have the frictionwheel act in conjunction with any movable part, or travel along a stationary part, and in either case the movement will be indicated by the ringing of the gong.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. An alarm that comprises a pivoted and weighted standard, a friction-wheel having its bearing on the standard provided with a IOO series of radial lugs, a spring-wire earryiinc.)l a hammer and arranged to be actuated by said lugs and a gong arranged to be st-ruek by the hammer, substantially as set forth.

2. A11 alarm that comprises a pivoted and weighted standard, a frietion-wheel having its bearing on the standard provided with a series of radial lugs beveled upon their outer faces, a spring-wire carrying a hammer and arranged in the path of the lugs, and a gong arranged to be struck by the hammer, substantially as set forth.

Si.' An alarm that comprises a base-plate, a weighted standard pivotallyv connected thereto, a friction -wheel journaled 1o the standard and provided with a series` of lugs, a spring-wire earrvingI a hammer and arranged to be actuated by said lugs, a spring for holding' said standard in position to bring' the wheel in Contact with an opposing' surface, and a gong` arranged to be struck by the hammer on the springwire, su I )stantiall y as set forth.

l. An alarm eomln'ising the lmse-plate (i, Weighted standard D, pivoted to said baseplate and provided with the lugf, the spring E, arranged to act in eon 'unction with said lug', the friction-wheel (Jl, jourilaled to the stamlard and provided with the lugs/1', the spring-wire ll, provided with the bends l; and carrying' the hammer I, and the gong J', arranged to be struck by said hammer, substantially as set it'orth.

In testimony that l ela-im the foregoing l have hereunto set my hand, at Milwaulule, in the county ot' Milwaukee and State ol' Wisconsin, in the presence ot' two witnesses.

Il ICIUIAN \\'ARLL]CI I.

lVitnesses:

N. E. OLiPHAN'r, Wilimim; KLUG. 

